18c2ecf20Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 28c2ecf20Sopenharmony_ci#ifndef _ASM_X86_MMAN_H 38c2ecf20Sopenharmony_ci#define _ASM_X86_MMAN_H 48c2ecf20Sopenharmony_ci 58c2ecf20Sopenharmony_ci#define MAP_32BIT 0x40 /* only give out 32bit addresses */ 68c2ecf20Sopenharmony_ci 78c2ecf20Sopenharmony_ci#ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS 88c2ecf20Sopenharmony_ci/* 98c2ecf20Sopenharmony_ci * Take the 4 protection key bits out of the vma->vm_flags 108c2ecf20Sopenharmony_ci * value and turn them in to the bits that we can put in 118c2ecf20Sopenharmony_ci * to a pte. 128c2ecf20Sopenharmony_ci * 138c2ecf20Sopenharmony_ci * Only override these if Protection Keys are available 148c2ecf20Sopenharmony_ci * (which is only on 64-bit). 158c2ecf20Sopenharmony_ci */ 168c2ecf20Sopenharmony_ci#define arch_vm_get_page_prot(vm_flags) __pgprot( \ 178c2ecf20Sopenharmony_ci ((vm_flags) & VM_PKEY_BIT0 ? _PAGE_PKEY_BIT0 : 0) | \ 188c2ecf20Sopenharmony_ci ((vm_flags) & VM_PKEY_BIT1 ? _PAGE_PKEY_BIT1 : 0) | \ 198c2ecf20Sopenharmony_ci ((vm_flags) & VM_PKEY_BIT2 ? _PAGE_PKEY_BIT2 : 0) | \ 208c2ecf20Sopenharmony_ci ((vm_flags) & VM_PKEY_BIT3 ? _PAGE_PKEY_BIT3 : 0)) 218c2ecf20Sopenharmony_ci 228c2ecf20Sopenharmony_ci#define arch_calc_vm_prot_bits(prot, key) ( \ 238c2ecf20Sopenharmony_ci ((key) & 0x1 ? VM_PKEY_BIT0 : 0) | \ 248c2ecf20Sopenharmony_ci ((key) & 0x2 ? VM_PKEY_BIT1 : 0) | \ 258c2ecf20Sopenharmony_ci ((key) & 0x4 ? VM_PKEY_BIT2 : 0) | \ 268c2ecf20Sopenharmony_ci ((key) & 0x8 ? VM_PKEY_BIT3 : 0)) 278c2ecf20Sopenharmony_ci#endif 288c2ecf20Sopenharmony_ci 298c2ecf20Sopenharmony_ci#include <asm-generic/mman.h> 308c2ecf20Sopenharmony_ci 318c2ecf20Sopenharmony_ci#endif /* _ASM_X86_MMAN_H */ 32